English
Related papers

Related papers: Coisotropic Ekeland-Hofer capacities

200 papers

It is a long-standing conjecture that all symplectic capacities which are equal to the Gromov width for ellipsoids coincide on a class of convex domains in $\mathbb{R}^{2n}$. It is known that they coincide for monotone toric domains in all…

Symplectic Geometry · Mathematics 2024-09-10 Jean Gutt , Vinicius G. B. Ramos

This paper is devoted to the construction of analogues of higher Ekeland-Hofer symplectic capacities for $P$-symmetric subsets in the standard symplectic space $(\mathbb{R}^{2n},\omega_0)$, which is motivated by Long and Dong's study…

Symplectic Geometry · Mathematics 2021-02-02 Kun Shi , Guangcun Lu

Motivated by Pazit Haim-Kislev's combinatorial formula for the Ekeland-Hofer-Zehnder capacities of convex polytopes, we give corresponding formulas for $\Psi$-Ekeland-Hofer-Zehnder and coisotropic Ekeland-Hofer-Zehnder capacities of convex…

Symplectic Geometry · Mathematics 2021-10-13 Kun Shi , Guangcun Lu

In [EH89, Theorem 1] Ekeland-Hofer prove that for a centrally symmetric, restricted contact type hypersurface in R^{2n} and for any global, centrally symmetric Hamiltonian perturbation there exists a leaf-wise intersection point. In this…

Symplectic Geometry · Mathematics 2012-08-13 Peter Albers , Urs Frauenfelder

In this paper, we prove that the Ekeland-Hofer capacities coincide on all star-shaped domain in $\mathbb{R}^{2n}$ with the equivariant symplectic homology capacities defined by the first author and Hutchings, answering a 35 years old…

Symplectic Geometry · Mathematics 2024-12-13 Jean Gutt , Vinicius G. B. Ramos

We introduce the notion of a symplectic capacity relative to a coisotropic submanifold of a symplectic manifold, and we construct two examples of such capacities through modifications of the Hofer-Zehnder capacity. As a consequence, we…

Symplectic Geometry · Mathematics 2022-09-28 Samuel Lisi , Antonio Rieser

For a convex domain in the standard Euclidean symplectic space which is invariant under a linear anti-symplectic involution $\tau$ we show that its Ekeland-Hofer-Zehnder capacity is equal to the $\tau$-symmetrical symplectic capacity of it.

Symplectic Geometry · Mathematics 2020-08-04 Kun Shi , Guangcun Lu

We prove representation formulas for the coisotropic Hofer-Zehnder capacities of bounded convex domains with special coisotropic submanifolds and the leaf relation (introduced by Lisi and Rieser recently), study their estimates and…

Symplectic Geometry · Mathematics 2023-03-29 Rongrong Jin , Guangcun Lu

In this paper we construct analogues of Ekeland-Hofer and Hofer-Zehnder symplectic capacities based on a class of Hamiltonian boundary value problems motivated by Clarke's and Ekeland's work, and study generalizations of some important…

Symplectic Geometry · Mathematics 2023-04-05 Rongrong Jin , Guangcun Lu

We use positive S^1-equivariant symplectic homology to define a sequence of symplectic capacities c_k for star-shaped domains in R^{2n}. These capacities are conjecturally equal to the Ekeland-Hofer capacities, but they satisfy axioms which…

Symplectic Geometry · Mathematics 2018-10-24 Jean Gutt , Michael Hutchings

In this paper we introduce a combinatorial formula for the Ekeland-Hofer-Zehnder capacity of a convex polytope in $\mathbb{R}^{2n}$. One application of this formula is a certain subadditivity property of this capacity.

Symplectic Geometry · Mathematics 2023-09-19 Pazit Haim-Kislev

A long-standing conjecture states that all normalized symplectic capacities coincide on the class of convex subsets of ${\mathbb R}^{2n}$. In this note we focus on an asymptotic (in the dimension) version of this conjecture, and show that…

Symplectic Geometry · Mathematics 2015-09-08 Efim D. Gluskin , Yaron Ostrover

For any nonempty, compact and fiberwise convex set $K$ in $T^*\mathbb{R}^n$, we prove an isomorphism between symplectic homology of $K$ and a certain relative homology of loop spaces of $\mathbb{R}^n$. We also prove a formula which computes…

Symplectic Geometry · Mathematics 2021-06-15 Kei Irie

We improve the estimates for the Ekeland--Hofer--Zehnder capacity of convex bodies by Gluskin and Ostrover. In the course of our argument we show that a closed characteristic of minimal action on the boundary of a centrally symmetric convex…

Metric Geometry · Mathematics 2018-01-03 Arseniy Akopyan , Roman Karasev

We prove that all normalized symplectic capacities coincide on smooth domains in $\mathbb C^n$ which are $C^2$-close to the Euclidean ball, whereas this fails for some smooth domains which are just $C^1$-close to the ball. We also prove…

Symplectic Geometry · Mathematics 2023-12-13 Alberto Abbondandolo , Gabriele Benedetti , Oliver Edtmair

We prove that for $n\geq2$ there exists a compact subset $X$ of the closed ball in $R^{2n}$ of radius $\sqrt{2}$, such that $X$ has Hausdorff dimension $n$ and does not symplectically embed into the standard open symplectic cylinder. The…

Symplectic Geometry · Mathematics 2012-09-04 Jan Swoboda , Fabian Ziltener

We establish computational results concerning the Lagrangian capacity from "Cieliebak and Mohnke - Punctured holomorphic curves and Lagrangian embeddings". More precisely, we show that the Lagrangian capacity of a 4-dimensional convex toric…

Symplectic Geometry · Mathematics 2022-05-27 Miguel Pereira

We prove a coisotropic intersection result and deduce the following: 1. Lower bounds on the displacement energy of a subset of a symplectic manifold, in particular a sharp stable energy-Gromov-width inequality. 2. A stable non-squeezing…

Differential Geometry · Mathematics 2012-09-04 Jan Swoboda , Fabian Ziltener

In $\mathbb{C}^2$ with the standard symplectic structure we consider the bidisc $D^2\times D^2$ constructed as the product of two open real discs of radius $1$. We compute explicit values for the first, second and third Ekeland-Hofer…

Complex Variables · Mathematics 2020-05-06 Luca Baracco , Martino Fassina , Stefano Pinton

The ECH capacities are a sequence of numerical invariants of symplectic four-manifolds which give (sometimes sharp) obstructions to symplectic embeddings. These capacities are defined using embedded contact homology, and establishing their…

Symplectic Geometry · Mathematics 2022-10-12 Michael Hutchings
‹ Prev 1 2 3 10 Next ›